TheSpecialized Big Roller 20x2.8 Tyre.The Big Roller tire gives younger riders advantages that adult size bikes are getting. Wider tires, along with a new tread design allows for maximum traction and stability in many riding conditions. This leads to more fun and better confidence! Specialized Big Roller 20x2.8 Tyre Features Casing: 60TPI Bead: Wire Compound: 60a 20 x 2.8"; Max Ride 25psi / Max Install 35psi; approximate weight 670g 24 x 2.8"; Max Ride 25psi / Max Install 35psi; approximate weight 835g More info
